Tunable Littrow Laser(LDL)
The MOGLabs LDL Littrow External Cavity Diode Laser is a research quality laser for advanced applications in atomic and quantum physics. All springs – including flexures – have been removed to create a robust, stable, and vibrationally inert device. Grating rotation and vertical alignment are uncoupled, allowing simple tuning over the full diode wavelength range without realignment. When used with a MOGLabs Diode Laser Controller, mode-hop-free scanning range of up to 40GHz and linewidth below 100 kHz can be achieved, with a broad range of AR coated and less expensive uncoated diodes. Diode replacement and re-alignment are easily accomplished by the end-user. Wavelength options extend from 368nm to 1620nm, and powers up to 250mW extra-cavity.
Features
Vibrationally inert
Passive stability Wide tuning range
Wavelengths from 368 to 1620nm
Decoupled grating rotation and tilt
Wide mode-hop free scan range
Narrow linewidth Fast piezo feedback
Precision alignment controls
High bandwidth low latency modulation
Diode protection circuit and relay
Low frequency noise
Applications
Laser cooling and trapping
Bose-Einstein condensation
Quantum optics: squeezed light
Electromagnetic transparency and slow light
Time and frequency standards Laser spectroscopy
Physics teaching labs
Specifications LDL
| Wavelength/Frequency 368nm to 1612nm Linewidth Modulation Coarse tuning range | Up to 250mW output power, diode dependent Typically <200kHz, diode dependent 20 MHz bandwidth, AC or DC coupled, 20ns latency RF bias tee option : 2.5GHz bandwidth Up to 50ns for single diode |
| Optical Beam diameter(1/e^2) Polarization | Typically 1mm x 2mm to 1.5mmx4mm; diode-dependent Linear 100:1 typical |
| Thermal TEC Sensor Stability at base Cooling | ±14.5V 3.3A Q=23W standard NTC 10 ㏀ standard; AD509, 592 optional ±1mK (controller dependent) Water cooling connections optional (usually not required) |
| Sweep/Scan Scan range Mode-hop free scan Piezo Cavity length | Up to 50GHz; with Moglabs controller, rate 4Hz to 70Hz 10GHz to 40GHz, diode dependent, with current feed-forward 0 ~ 120V or 0 ~ 150V, 2 to 5 ㎛ 1 ~ 3cm(5-15 GHz FSR)approx. |
| Electronics Protection Indicator Modulation input Connector | Relay, cover interlock connection, reverse diode Laser ON/OFF (LED) 20 MHz bandwidth, AC or DC coupled, 20ns latency RFbias tee option : >2.5GHz bandwidth, 16MHz ~ 2.5GHz (lower cutoff optional) |
| Dimensions Dimensions | 105 x 90 x 90 mm(L x W x H), 1kg |
| Options | Faraday isolator; fiber coupled; modulation low-frequency cutoff |
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